Home / 185,141.29-255,319.47-127,688.80

Finding the Fourth Proportional to 185,141.29, 255,319.47 and 127,688.80

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Solution

The fourth proportional to 185,141.29, 255,319.47 and 127,688.80 is: 176,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,141.29 : 255,319.47 = 127,688.80 : x
  2. Step 2: Convert to fraction form
    185,141.29/255,319.47 = 127,688.80/x
  3. Step 3: Cross multiply
    185,141.29x = 255,319.47 × 127,688.80
  4. Step 4: Simplify right side
    185,141.29x = 32,601,436,102.64
  5. Step 5: Solve for x
    x = 32,601,436,102.64/185,141.29
  6. Step 6: Final answer
    x = 176,089.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.